<template>
  <div id="root">
    <div class="todo-container">
      <div class="todo-wrap">
        <Header :addTodo="addTodo"></Header>
        <List :todos="todos" :deleteTodo="deleteTodo" :checkAllTodo='checkAllTodo'></List>
        <Footer
          :deleteAllDone="deleteAllDone"
          :todos="todos"
          :checkAllTodo="checkAllTodo"
        ></Footer>
      </div>
    </div>
  </div>
</template>

<script>
import Header from "./components/Header";
import List from "./components/List";
import Footer from "./components/Footer";

export default {
  name: "App",
  components: { Header, List, Footer },
  data() {
    return {
      todos: [
        { id: "qwert", title: "打LOL手游", done: true },
        { id: "yuiop", title: "看漫画", done: true },
        { id: "asdfg", title: "敲todolist", done: true },
      ],
    };
  },
  methods: {
    addTodo(todoObj) {
      const result = this.todos.find((todo) => todo.title == todoObj.title);
      if (result) {
        alert("不能重复添加!");
        return false;
      } else {
        this.todos.unshift(todoObj);
        return true;
      }
    },
    deleteTodo(id) {
      const fltTodos = this.todos.filter((todo) => todo.id !== id);
      this.todos = fltTodos;
    },
    deleteAllDone() {
      const fltTodos = this.todos.filter((todo) => !todo.done);
      this.todos = fltTodos;
    },
    checkAllTodo(done) {
      this.todos.forEach((todo) => {
        todo.done = done;
      });
    },
  },
};
</script>

<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
